Hook



FIG. 1 is a front perspective view of a hook, showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a back view thereof;

The broken lines depict portions of the hook that form no part of the claim and the dot dash lines represent a boundary of the claim and also form no part of the claim. 

CLAIM We claim the ornamental design for a hook, as shown and described. 